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- Johansson, Björn, 1974-, et al.
(author)
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Distributed aircraft analysis using web service technology
- 2003
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In: SAE Transactions Journal of Aerospace. - New York : SAE International. - 0096-736X. ; 112:1, s. 445-453, s. 2003-01-3007-
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Journal article (peer-reviewed)abstract
- The design of modern aircraft requires the integration of multidisciplinary mouels for analysis in the early design phase to increase the chances of a successful project. In this paper, a framework for distributed aircraft analysis in the conceptual design including several domains is presented. The framework is based on so-called Web Service Standards, allowing integration of distributed models for system simulation and optimization using standardized interfaces. The analysis is controlled by a so-called sequencer which manages the interaction between simulation modules and an XML-based design data repository. This repository includes all design data and an executable process description defining the sequence for execution of the modules. In the paper, the framework with its underlying concepts is described. The approach is further illustrated using thedesign of an Unmanned Aerial Vehicle as an example. This includes the definition of the stimulation modules, the process model, and definition and execution of an optimization problem.
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- Amadori, Kristian, 1976-, et al.
(author)
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Aircraft Conceptual Design Optimization
- 2008
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In: International Congress of the Aeronautical Sciences ICAS,2008. - Stockholm, Sweden : ICAS.
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Conference paper (peer-reviewed)abstract
- Aircraft design is an inherently multidisciplinary activity that requires different models and tools for various aspects of the design. At Linköping University a novel design framework is being developed to support the initial conceptual design phase of new aircraft. By linking together various modules via a userfriendly spreadsheet interface, the framework allows multidisciplinary analysis and optimizations to be carried out. The geometrical model created with a high-end CAD system, contains all the available information on the product and thus it plays a central role in the framework. In this work great attention has been paid to techniques that allow creating robust yet highly flexible CAD models. Two different case studies are presented. The first one is a hypothetic wing-box design that is studied with respect to aerodynamic efficiency and loads, and to structural analysis. In this study two approaches were compared. In one case the wing-box design was optimized with a fixed number of structural elements, where only dimensions and position were allowed to change. Then the same wing-box was analyzed allowing also the number of structural elements to vary. Thus only the parts that are required are left and a more efficient design can be obtained. In the second case study a mission simulation is performed on a UAV-type aircraft. Required data for the simulation are gathered from the CAD model and from aerodynamic analysis carried out with PANAIR, a high order panel code. The obtained data are then used as inputs parameters for flight simulation in order to determined hydraulic systems characteristics.
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- Jouannet, Christopher, 1974-, et al.
(author)
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Aerodynamic database of a subscale demonstrator
- 2017
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In: 35th AIAA Applied Aerodynamics Conference. - Reston, VA, USA : American Institute of Aeronautics and Astronautics.
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Conference paper (peer-reviewed)abstract
- This paper reports the current status of a joint Swedish-Brazilian research project aiming at exploring sub scale flight testing. A 13% scale fighter aircraft is used as a test bench for developing methods and procedures for data acquisition. This paper will present an aerodynamic database as a partial result of the collaborative project.
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- Jouannet, Christopher, 1974-, et al.
(author)
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Aircraft design education at Linköpings University
- 2007
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In: Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering. - 0954-4100 .- 2041-3025. ; 221:2, s. 217-224
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Journal article (peer-reviewed)abstract
- Aircraft design is a complex multi-disciplinary task and teaching can easily tend to be too theoretical, not providing the students the tools they need to successfully participate in industrial projects. The approach chosen at Linköping University is intended to create the right balance between theory and practice, and to place the student in the centre of the problem, in order to achieve an overall perspective of the aircraft design process. This article presents in brief layout of the courses, and in more detail, the aircraft design project course given in the last year of the aeronautical masters program, where flying hardware is designed and build, in response to a design challenge. © IMechE 2007.
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| 8. |
- Jouannet, Christopher, 1974-, et al.
(author)
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Aircraft manoeuvers simulation, steady and unsteady aerodynamic
- 2003
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In: SAE Technical Paper. - Montreal, Canada : World Aviation Congress. - 0148-7191. ; , s. 2003-01-3034-
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Conference paper (peer-reviewed)abstract
- The current work present a simple model to integrate non-linear aerodynamic in conceptual design phase, before wind tunnel testing. A presentation of a simple pitch up maneuver based on three different aerodynamic models is simulated. The simulation indicates different behaviors depending on the aerodynamic model, and shows the importance of including unsteady aerodynamic.
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